Automatic purging device for new energy automobile battery box

Through the automatic purge device of the battery box of new energy vehicles, air medium is used for cleaning, which solves the problems of high cost and low efficiency of the existing cleaning process, and achieves the effect of energy-saving, environmentally friendly, low-cost and efficient cleaning.

CN222790037UActive Publication Date: 2025-04-25CHENGDU MINSHENG AUTO PARTS CO LTD
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Patent Information

Application Number
CN202422136834.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-04-25
Estimated Expiration
2034-09-02

AI Technical Summary

Technical Problem

The existing new energy vehicle battery box cleaning process uses mixed potions and water, resulting in high equipment costs, high energy consumption, high production and operation costs, large area, need for supporting environmental protection facilities, low production efficiency and high operation and maintenance costs, and poor practical application results.

Method used

An automatic purge device for a new energy vehicle battery box is provided. It uses a fixing frame and a rotating frame. The rotating frame is equipped with fixed components and purge components. The battery box is purged and cleaned by air as a medium, and avoids the use of water and potions.

Benefits of technology

Through air purging and cleaning, it saves energy and environmentally friendly, reduces equipment costs and operation and maintenance costs, covers a small area, improves the cleaning efficiency of the battery box, and solves multiple problems of the existing cleaning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of cleaning equipment, and discloses an automatic purging device for a new energy automobile battery box, the automatic purging device comprises a fixing frame and a rotating frame, the rotating frame is provided with a fixing assembly used for fixing the battery box and a purging assembly used for purging and cleaning the battery box, the fixing assembly is arranged on the first side face of the rotating frame, and the purging assembly is arranged on the second side face of the rotating frame. The rotating frame is rotationally connected to the fixing frame, and the rotating frame can rotate until the battery box fixed on the fixing assembly faces upwards or downwards. The blowing assembly comprises a transverse moving assembly, a longitudinal moving assembly and a plurality of blowing heads, the multiple blowing heads are connected to the longitudinal moving assembly, the longitudinal moving assembly is connected to the transverse moving assembly, the transverse moving assembly is used for driving the longitudinal moving assembly to move longitudinally, and the longitudinal moving assembly is used for driving the multiple blowing heads to move longitudinally; and the plurality of purging heads are used for purging and cleaning the battery box. According to the automatic purging device for the new energy automobile battery box, the cleaning effect of the battery box is improved.
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Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and more specifically, to an automatic blowing device for a battery box of a new energy vehicle. Background Art

[0002] With the rise and popularity of new energy vehicles, the use of lithium batteries has become more and more extensive, making various manufacturers pay more and more attention to the design of lithium battery boxes. Lithium batteries are sensitive to ambient temperature and need to be at a suitable temperature to exert stable performance. Therefore, it is necessary not only to ensure that the temperature inside the lithium battery box is not too high, but also to take into account the small temperature difference between the various modules of the lithium battery. The production process design of the battery box assembly used to fix the lithium battery has always been a technical difficulty for many manufacturers. When designing a battery box for new energy vehicles, it is necessary to take into account the lightweight requirements and strength requirements of the battery box structure. In order to reduce the weight of new energy vehicles and increase the strength of the battery box, aluminum alloy extrusion or aluminum alloy die-casting is usually used to produce new energy vehicle battery boxes.

[0003] Since the battery box has multiple hollow cavities for fixing batteries, the existing battery box cleaning process generally includes water washing, degreasing, drying and aluminum chip inspection. This battery box cleaning process has the following disadvantages: 1. After welding, the aluminum alloy extrusion structure of the battery box is interconnected inside, and the opening on the aluminum alloy extrusion structure of the battery box is small, which cannot efficiently discharge the water flow. Therefore, after the aluminum alloy extrusion structure is washed with water, the water flow of the aluminum alloy extrusion structure cannot be discharged. Even if it is dried at high temperature, it can only dry the surface of the aluminum alloy extrusion structure; the steam generated inside the aluminum alloy extrusion structure cannot be discharged normally, and the water vapor accumulates inside the aluminum alloy extrusion structure. The water vapor in the battery box cavity is easy to damage the conductor, chip and circuit, which will reduce the insulation effect of the lithium battery cell and cause the lithium battery to oxidize, increasing the risk of fire caused by lithium battery damage. 2. The existing lithium battery box cleaning process adopts a cleaning process after mixing medicine and water, and the equipment cost is large, resulting in a high one-time investment cost of the battery box cleaning equipment. 3. The energy consumption of the cleaning process after mixing medicine and water is high. 4. The production and operation costs of the cleaning process using a mixture of liquid medicine and water are high. 5. The floor space occupied by the cleaning process using a mixture of liquid medicine and water is large. 6. The cleaning process using a mixture of liquid medicine and water requires supporting environmental protection facilities, which further increases the floor space and production costs. 7. The production efficiency of the cleaning process using a mixture of liquid medicine and water is low. 8. The operation and maintenance costs of the cleaning process using a mixture of liquid medicine and water are high. Therefore, the actual application effect of the cleaning process using a mixture of liquid medicine and water used in the battery box is not good. Utility Model Content

[0004] The purpose of this application is to provide an automatic purge device for a new energy vehicle battery box, which solves the technical problem that the actual application effect of the cleaning process after the mixture of medicine and water used in the battery box is not good, and achieves the technical effect of improving the cleaning effect of the battery box through the automatic purge device of the new energy vehicle battery box.

[0005] An automatic blowing device for a battery box of a new energy vehicle provided in an embodiment of the present application comprises a fixed frame and a rotating frame, the rotating frame is provided with a fixed component for fixing the battery box and a blowing component for blowing and cleaning the battery box, the fixed component is arranged on a first side surface of the rotating frame, the rotating frame is rotatably connected to the fixed frame, and the rotating frame can be rotated until the battery box fixed on the fixed component is set to face upward or downward.

[0006] In one possible implementation, the purge assembly includes a transverse moving assembly, a longitudinal moving assembly and multiple purge heads, the multiple purge heads are connected to the longitudinal moving assembly, the longitudinal moving assembly is connected to the transverse moving assembly, the transverse moving assembly is used to drive the longitudinal moving assembly to move longitudinally, the longitudinal moving assembly is used to drive the multiple purge heads to move longitudinally, and the multiple purge heads are used to purge and clean the battery box.

[0007] In another possible implementation, multiple purge heads are arranged in a straight line at equal intervals on a longitudinal moving component, and the longitudinal moving component can drive the multiple purge heads to reciprocate longitudinally. The travel range of the multiple purge heads driven by the longitudinal moving component is greater than the distance between two adjacent purge heads.

[0008] In another possible implementation, the fixing assembly includes a plurality of pneumatic chucks disposed on a rotating frame, and the plurality of pneumatic chucks fix the battery box along the circumference of the battery box.

[0009] In another possible implementation, a plurality of guide plates are provided on the rotating frame, and the guide plates are used to guide the edge of the battery box.

[0010] In another possible implementation, the plurality of purge heads include a first purge head disposed opposite to the rotating frame and a second purge head disposed obliquely relative to the rotating frame.

[0011] In another possible implementation, a positioning column for positioning the battery box is provided on the rotating frame, and an outer side wall of the positioning column is tapered.

[0012] In another possible implementation, a support block for positioning the battery box is provided on the rotating frame.

[0013] In another possible implementation, the fixed frame includes a first support frame and a second support frame, the first support frame and the second support frame are provided with a driving assembly, and both ends of the rotating frame are respectively connected to the driving assemblies of the first support frame and the second support frame.

[0014] In another possible implementation, a control component is provided on the first support frame or the second support frame, and a display screen is provided on the control component.

[0015] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0016] The embodiment of the present application provides an automatic purge device for a battery box of a new energy vehicle, including a fixed frame and a rotating frame, the rotating frame is provided with a fixed component for fixing the battery box and a purge component for purging and cleaning the battery box, the fixed component is arranged on a first side of the rotating frame, the rotating frame is rotatably connected to the fixed frame, and the rotating frame can be rotated to the fixed component until the battery box fixed to the fixed component is arranged to face upward or downward. The automatic purge device for the battery box of a new energy vehicle in the embodiment of the present application uses air as a medium to purge and clean the battery box, does not need to be cleaned after mixing water and liquid medicine, is energy-saving and environmentally friendly, has low cost, occupies a small area, and is convenient for efficient cleaning of the battery box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an automatic purge device for a new energy vehicle battery box provided in an embodiment of the present application;

[0019] Figure 2 A schematic structural diagram of an automatic purge device for a battery box of a new energy vehicle provided in an embodiment of the present application in a first state;

[0020] Figure 3 A schematic structural diagram of an automatic purge device for a battery box of a new energy vehicle provided in an embodiment of the present application in a second state;

[0021] Figure 4 A schematic diagram of a three-dimensional structure of a rotating frame provided in an embodiment of the present application;

[0022] Figure 5 for Figure 4 A schematic diagram of a local structure of a rotating frame at position A;

[0023] In the figure, 1, fixed frame; 11, first supporting frame; 12, second supporting frame; 2, rotating frame; 201, guide plate; 202, positioning column; 203, supporting block; 21, fixed assembly; 211, pneumatic chuck; 22, purge assembly; 221, lateral moving assembly; 222, longitudinal moving assembly; 223, purge head; 223a, first purge head; 223b, second purge head. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that when a component or structure is referred to as being "fixed to" or "disposed on" another component or structure, it may be directly on the other component or structure or indirectly on the other component or structure. When a component or structure is referred to as being "connected to" another component or structure, it may be directly connected to the other component or structure or indirectly connected to the other component or structure.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or a component or structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] The existing battery box cleaning process generally includes steps such as water washing, degreasing, drying and aluminum chip inspection. Water vapor accumulates inside the aluminum alloy extrusion structure. The water vapor in the battery box cavity can easily damage conductors, chips and circuits, which will reduce the insulation effect of the lithium battery cell and cause lithium battery oxidation, increasing the risk of fire caused by lithium battery damage. In addition, this battery box cleaning process also has defects such as high cost, large footprint and the need to be equipped with environmental protection equipment, resulting in poor application effect of the existing battery box cleaning process.

[0029] Based on the above reasons, the embodiment of the present application provides an automatic purge device for a battery box of a new energy vehicle, including a fixed frame and a rotating frame, the rotating frame is provided with a fixed component for fixing the battery box and a purge component for purging and cleaning the battery box, the fixed component is arranged on the first side of the rotating frame, the rotating frame is rotatably connected to the fixed frame, and the rotating frame can be rotated to the fixed component until the battery box fixed to the fixed component is arranged to face upward or downward. The automatic purge device for the battery box of a new energy vehicle in the embodiment of the present application uses air as a medium to purge and clean the battery box, does not need to be cleaned after mixing water and liquid medicine, is energy-saving and environmentally friendly, has low cost, occupies a small area, and is convenient for efficient cleaning of the battery box.

[0030] In some scenarios, an automatic purge device for a new energy vehicle battery box according to an embodiment of the present application can be used in the purge and cleaning process of a battery box made of aluminum alloy, which can improve the purge and cleaning efficiency of the battery box, and the purge and cleaning process is energy-saving and environmentally friendly. The automatic purge device has low cost and occupies a small area, and can improve the application effect of the purge and cleaning process of the battery box.

[0031] The following is a detailed description of an automatic purge device for a new energy vehicle battery box provided in an embodiment of the present application with reference to specific examples.

[0032] Figure 1 A schematic diagram of the three-dimensional structure of an automatic purge device for a new energy vehicle battery box provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the automatic blowing device includes a fixed frame 1 and a rotating frame 2, the rotating frame 2 is provided with a fixed component 21 for fixing the battery box and a blowing component 22 for blowing and cleaning the battery box, the fixed component 21 is arranged on the first side of the rotating frame 2, the rotating frame 2 is rotatably connected to the fixed frame 1, and the rotating frame 2 can be rotated until the battery box fixed on the fixed component 21 is set to face upward or downward.

[0033] The battery box may be a battery box fixed on the chassis of a new energy vehicle. The battery box is relatively large in size, so the battery box needs to be stably fixed and cleaned.

[0034] like Figure 1 As shown, the fixed frame 1 and the rotating frame 2 can cooperate with each other to purge and clean the battery box. The fixed frame 1 is used to support the rotating frame 2, and the rotating frame 2 is used to fix the battery box and then purge it.

[0035] Structurally, the rotating frame 2 is provided with a fixing component 21 for fixing the battery box and a blowing component 22 for blowing and cleaning the battery box. The fixing component 21 is arranged on the first side of the rotating frame 2, so that the battery box can be fixed on the first side of the rotating frame 2 through the fixing component 21.

[0036] like Figure 1 As shown, the rotating frame 2 is rotatably connected to the fixed frame 1, so that the rotating frame 2 can be rotated on the fixed frame 1 according to cleaning needs.

[0037] Figure 2 A schematic diagram of the structure of an automatic purge device for a new energy vehicle battery box provided in an embodiment of the present application in a first state, as shown in FIG. Figure 2 As shown, the rotating frame 2 of the automatic blowing device can be rotated until the battery box fixed on the fixing assembly 21 faces upward, which is convenient for fixing the battery box to the first side of the rotating frame 2. At this time, the battery fixing cavity on the battery box is set to face upward.

[0038] Figure 3 A schematic diagram of the structure of an automatic purge device for a new energy vehicle battery box in a second state provided in an embodiment of the present application, such as Figure 3 As shown, the rotating frame 2 of the automatic blowing device can be rotated until the battery box fixed on the fixed component 21 faces downward. At this time, the battery fixing cavity on the battery box faces downward, and when the aluminum chips and dust on the battery box are blown and cleaned, the aluminum chips and dust are easy to leave the battery box under the action of gravity.

[0039] The beneficial effect brought about by the above-mentioned implementation method is that during the purging and cleaning process of the battery box, the purging and cleaning process is energy-saving and environmentally friendly, and the automatic purging device is low-cost and occupies a small area, which can improve the application effect of the purging and cleaning process of the battery box.

[0040] The beneficial effect brought about by the above-mentioned implementation method is that the battery box can be easily fixed to the rotating frame, and after the rotating frame is flipped, the aluminum chips and dust can be easily blown off the battery box, which can improve the cleaning efficiency of the battery box.

[0041] In some implementations, the purge assembly 22 includes a transverse moving assembly 221, a longitudinal moving assembly 222 and a plurality of purge heads 223, the plurality of purge heads 223 are connected to the longitudinal moving assembly 222, the longitudinal moving assembly 222 is connected to the transverse moving assembly 221, the transverse moving assembly 221 is used to drive the longitudinal moving assembly 222 to move longitudinally, the longitudinal moving assembly 222 is used to drive the plurality of purge heads 223 to move longitudinally, and the plurality of purge heads 223 are used to purge and clean the battery box.

[0042] like Figure 1 Shown to Figure 3 As shown, structurally, the purge assembly 22 includes a transverse moving assembly 221, a longitudinal moving assembly 222 and a plurality of purge heads 223, which cooperate with each other to complete the purge process of the battery box.

[0043] Structurally, multiple purge heads 223 are connected to the longitudinal moving component 222, and the longitudinal moving component 222 is connected to the transverse moving component 221, so that the multiple purge heads 223 purge the battery box with the cooperation of the transverse moving component 221 and the longitudinal moving component 222.

[0044] During operation, the transverse moving component 221 can drive the longitudinal moving component 222 to move longitudinally, and the longitudinal moving component 222 can drive the multiple purge heads 223 to move longitudinally. The multiple purge heads 223 are used to purge and clean the battery box, so that the multiple purge heads 223 can move longitudinally and transversely relative to the battery box to perform comprehensive purge and clean the battery box.

[0045] The beneficial effect brought about by the above implementation method is that the multiple purge heads can move longitudinally and transversely relative to the battery box to perform comprehensive purge cleaning on the battery box.

[0046] In some implementations, multiple purge heads 223 are arranged in an equidistant and linear manner on a longitudinal moving component 222. The longitudinal moving component 222 can drive the multiple purge heads 223 to reciprocate longitudinally. The travel range of the multiple purge heads 223 driven by the longitudinal moving component 222 is greater than the spacing between two adjacent purge heads 223.

[0047] Structurally, the plurality of purge heads 223 are arranged in a straight line at equal intervals on the longitudinal moving assembly 222 , so that the plurality of purge heads 223 can evenly purge the battery box.

[0048] During operation, the longitudinal moving assembly 222 can drive the plurality of purge heads 223 to reciprocate longitudinally, so that the plurality of purge heads 223 can reciprocate longitudinally to purge the battery box.

[0049] During operation, the longitudinal moving component 222 drives the multiple purge heads 223 to have a travel range greater than the distance between two adjacent purge heads 223, so that the multiple purge heads 223 can fully cover the area of ​​the battery box, thereby improving the purging and cleaning effect of the battery box.

[0050] The beneficial effect brought about by the above implementation method is that the multiple purge heads can perform longitudinal reciprocating motion to purge the battery box, thereby improving the purge cleaning effect.

[0051] The beneficial effect brought about by the above-mentioned implementation method is that the travel range of the multiple purge heads during longitudinal movement is greater than the distance between two adjacent purge heads, and the multiple purge heads can fully cover the area of ​​the battery box to ensure the purging and cleaning effect of the battery box.

[0052] In some implementations, the fixing assembly 21 includes a plurality of pneumatic chucks 211 disposed on the rotating frame 2 , and the plurality of pneumatic chucks 211 fix the battery box along the circumference of the battery box.

[0053] like Figure 1 and Figure 2 As shown, the fixing assembly 21 includes a plurality of pneumatic chucks 211 disposed on the rotating frame 2. The pneumatic chucks 211 are driven to open or close by high-pressure airflow to fix or release the battery box.

[0054] Structurally, the multiple pneumatic chucks 211 fix the battery box along the circumference of the battery box, which can ensure the fixing stability of the multiple pneumatic chucks 211.

[0055] The beneficial effect brought about by the above implementation method is that the fixing stability of the battery box can be ensured by using multiple pneumatic chucks, and the battery box can be easily fixed or released.

[0056] In some implementations, a plurality of guide plates 201 are disposed on the rotating frame 2, and the guide plates 201 are used to guide the edges of the battery box.

[0057] like Figure 1 As shown, a plurality of guide plates 201 are provided on the rotating frame 2 , and the guide plates 201 are used to guide the edge of the battery box so as to fix the battery box to the rotating frame 2 .

[0058] Exemplarily, the guide plate 201 may be in a curved structure, and the battery box can be guided when the battery box is installed on the rotating frame 2 by means of a plurality of guide plates 201, thereby improving the accuracy of fixing the battery box.

[0059] The beneficial effect brought about by the above implementation manner is that the battery box can be guided by the multiple guide plates when the battery box is installed on the rotating frame.

[0060] In some implementations, the plurality of purge heads 223 include a first purge head 223 a disposed directly opposite to the turret 2 and a second purge head 223 b disposed obliquely relative to the turret 2 .

[0061] Figure 4 A schematic diagram of a three-dimensional structure of a rotating frame provided in an embodiment of the present application, Figure 5 for Figure 4 A schematic diagram of the local structure of a rotating frame at position A, as shown in Figure 4 and Figure 5 As shown, the multiple purge heads 223 include a first purge head 223a arranged opposite to the rotating frame 2 and a second purge head 223b arranged obliquely relative to the rotating frame 2, so that the first purge head 223a and the second purge head 223b can cooperate with each other to comprehensively clean the battery box.

[0062] The beneficial effect brought about by the above implementation manner is that the first purge head arranged opposite to the rotating frame and the second purge head arranged obliquely relative to the rotating frame can cooperate with each other to comprehensively clean the battery box.

[0063] In some implementations, a positioning column 202 for positioning the battery box is provided on the rotating frame 2, and an outer side wall of the positioning column 202 is tapered.

[0064] like Figure 5 As shown, structurally, a positioning column 202 for positioning the battery box is provided on the rotating frame 2 , and the outer side wall of the positioning column 202 is tapered, and the battery box can be accurately positioned by the positioning column 202 .

[0065] Exemplarily, the positioning column 202 may be made of soft plastic, so that the positioning column 202 can buffer the battery box.

[0066] The beneficial effect brought about by the above implementation manner is that the positioning accuracy of the battery box can be improved by the positioning column.

[0067] In some implementations, a support block 203 for positioning the battery box is provided on the rotating frame 2 .

[0068] like Figure 5 As shown, structurally, a support block 203 for positioning the battery box is provided on the rotating frame 2, and the battery box can be accurately positioned by a plurality of support blocks 203.

[0069] Exemplarily, a step portion is provided on the support block 203, and the support block 203 can accurately position the battery box.

[0070] The beneficial effect brought about by the above implementation method is that the multiple support blocks can accurately position the battery box.

[0071] In some implementations, the fixed frame 1 includes a first support frame 11 and a second support frame 12, the first support frame 11 and the second support frame 12 are provided with a driving assembly, and both ends of the rotating frame 2 are respectively connected to the driving assemblies of the first support frame 11 and the second support frame 12.

[0072] like Figures 1 to 3 As shown, structurally, a driving assembly is provided on the first support frame 11 and the second support frame 12, and both ends of the rotating frame 2 are respectively connected to the driving assemblies of the first support frame 11 and the second support frame 12, so that the rotating frame 2 can rotate under the drive of the driving assemblies of the first support frame 11 and the second support frame 12, thereby facilitating automatic control of the cleaning process of the battery box.

[0073] The beneficial effect brought about by the above implementation method is that it is easy to automatically control the cleaning process of the battery box.

[0074] In some implementations, a control component is provided on the first support frame 11 or the second support frame 12, and a display screen is provided on the control component.

[0075] like Figure 1 As shown, the cleaning process of the battery box can be automatically controlled by the control assembly on the first support frame 11 or the second support frame 12.

[0076] like Figure 1 As shown, a display screen is provided on the control assembly to facilitate display of the cleaning process of the battery box.

[0077] The beneficial effect brought about by the above implementation method is that it is easy to control and display the cleaning process of the battery box.

[0078] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An automatic purge device for a new energy vehicle battery box, characterized in that: The invention comprises a fixed frame (1) and a rotating frame (2); the rotating frame (2) is provided with a fixed component (21) for fixing a battery box and a purge component (22) for purging and cleaning the battery box; the fixed component (21) is arranged on a first side surface of the rotating frame (2); the rotating frame (2) is rotatably connected to the fixed frame (1); and the rotating frame (2) can be rotated until the battery box fixed on the fixed component (21) is arranged to face upward or downward.

2. The automatic purge device according to claim 1, characterized in that: The purge assembly (22) comprises a transverse moving assembly (221), a longitudinal moving assembly (222) and a plurality of purge heads (223); the plurality of purge heads (223) are connected to the longitudinal moving assembly (222); the longitudinal moving assembly (222) is connected to the transverse moving assembly (221); the transverse moving assembly (221) is used to drive the longitudinal moving assembly (222) to move longitudinally; the longitudinal moving assembly (222) is used to drive the plurality of purge heads (223) to move longitudinally; and the plurality of purge heads (223) are used to purge and clean the battery box.

3. The automatic purge device according to claim 2, characterized in that: The plurality of purge heads (223) are arranged on a longitudinal moving assembly (222) at equal intervals and in a straight line. The longitudinal moving assembly (222) can drive the plurality of purge heads (223) to perform longitudinal reciprocating motion. The travel range of the plurality of purge heads (223) driven by the longitudinal moving assembly (222) is greater than the distance between two adjacent purge heads (223).

4. The automatic purge device according to claim 3, characterized in that: The fixing assembly (21) comprises a plurality of pneumatic chucks (211) arranged on the rotating frame (2), and the plurality of pneumatic chucks (211) fix the battery box along the circumference of the battery box.

5. The automatic purge device according to claim 4, characterized in that: A plurality of guide plates (201) are provided on the rotating frame (2), and the guide plates (201) are used to guide the edge of the battery box.

6. The automatic purge device according to claim 5, characterized in that: The plurality of purge heads (223) include a first purge head (223a) arranged directly opposite to the rotating frame (2) and a second purge head (223b) arranged obliquely relative to the rotating frame (2).

7. The automatic purge device according to claim 6, characterized in that: A positioning column (202) for positioning the battery box is provided on the rotating frame (2), and the outer side wall of the positioning column (202) is tapered.

8. The automatic purge device according to claim 7, characterized in that: A support block (203) for positioning the battery box is provided on the rotating frame (2).

9. The automatic purge device according to claim 8, characterized in that: The fixed frame (1) comprises a first support frame (11) and a second support frame (12), the first support frame (11) and the second support frame (12) are provided with a driving assembly, and the two ends of the rotating frame (2) are respectively connected to the driving assemblies of the first support frame (11) and the second support frame (12).

10. The automatic purge device according to claim 9, characterized in that: A control component is provided on the first support frame (11) or the second support frame (12), and a display screen is provided on the control component.